Grey Haven Authentication Patterns

Follow Grey Haven Studio's authentication patterns using better-auth for TanStack Start projects with multi-tenant support.

Stack

• better-auth: Authentication library for TanStack Start
• Drizzle ORM: Database adapter for better-auth
• Doppler: Secret management (BETTER_AUTH_SECRET, OAuth keys)
• Redis: Session storage (via Upstash)
• PostgreSQL: User and session data with RLS

Critical Requirements